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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/bind.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "base/metrics/histogram.h"
#include "base/metrics/histogram_samples.h"
#include "base/metrics/statistics_recorder.h"
#include "base/test/test_timeouts.h"
#include "base/threading/platform_thread.h"
#include "base/threading/thread_restrictions.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_proxy.h"
#include "dbus/test_service.h"
#include "testing/gtest/include/gtest/gtest.h"
// The test for sender verification in ObjectProxy.
class SignalSenderVerificationTest : public testing::Test {
public:
SignalSenderVerificationTest() {
}
virtual void SetUp() {
base::StatisticsRecorder::Initialize();
// Make the main thread not to allow IO.
base::ThreadRestrictions::SetIOAllowed(false);
// Start the D-Bus thread.
dbus_thread_.reset(new base::Thread("D-Bus Thread"));
base::Thread::Options thread_options;
thread_options.message_loop_type = MessageLoop::TYPE_IO;
ASSERT_TRUE(dbus_thread_->StartWithOptions(thread_options));
// Start the test service, using the D-Bus thread.
dbus::TestService::Options options;
options.dbus_thread_message_loop_proxy = dbus_thread_->message_loop_proxy();
test_service_.reset(new dbus::TestService(options));
ASSERT_TRUE(test_service_->StartService());
ASSERT_TRUE(test_service_->WaitUntilServiceIsStarted());
ASSERT_TRUE(test_service_->HasDBusThread());
// Same setup for the second TestService. This service should not have the
// ownership of the name at this point.
test_service2_.reset(new dbus::TestService(options));
ASSERT_TRUE(test_service2_->StartService());
ASSERT_TRUE(test_service2_->WaitUntilServiceIsStarted());
ASSERT_TRUE(test_service2_->HasDBusThread());
// Create the client, using the D-Bus thread.
dbus::Bus::Options bus_options;
bus_options.bus_type = dbus::Bus::SESSION;
bus_options.connection_type = dbus::Bus::PRIVATE;
bus_options.dbus_thread_message_loop_proxy =
dbus_thread_->message_loop_proxy();
bus_ = new dbus::Bus(bus_options);
object_proxy_ = bus_->GetObjectProxy(
"org.chromium.TestService",
dbus::ObjectPath("/org/chromium/TestObject"));
ASSERT_TRUE(bus_->HasDBusThread());
// Connect to the "Test" signal of "org.chromium.TestInterface" from
// the remote object.
object_proxy_->ConnectToSignal(
"org.chromium.TestInterface",
"Test",
base::Bind(&SignalSenderVerificationTest::OnTestSignal,
base::Unretained(this)),
base::Bind(&SignalSenderVerificationTest::OnConnected,
base::Unretained(this)));
// Wait until the object proxy is connected to the signal.
message_loop_.Run();
}
virtual void TearDown() {
bus_->ShutdownOnDBusThreadAndBlock();
// Shut down the service.
test_service_->ShutdownAndBlock();
test_service2_->ShutdownAndBlock();
// Reset to the default.
base::ThreadRestrictions::SetIOAllowed(true);
// Stopping a thread is considered an IO operation, so do this after
// allowing IO.
test_service_->Stop();
test_service2_->Stop();
}
protected:
// Called when the "Test" signal is received, in the main thread.
// Copy the string payload to |test_signal_string_|.
void OnTestSignal(dbus::Signal* signal) {
dbus::MessageReader reader(signal);
ASSERT_TRUE(reader.PopString(&test_signal_string_));
message_loop_.Quit();
}
// Called when connected to the signal.
void OnConnected(const std::string& interface_name,
const std::string& signal_name,
bool success) {
ASSERT_TRUE(success);
message_loop_.Quit();
}
// Wait for the hey signal to be received.
void WaitForTestSignal() {
// OnTestSignal() will quit the message loop.
message_loop_.Run();
}
MessageLoop message_loop_;
scoped_ptr<base::Thread> dbus_thread_;
scoped_refptr<dbus::Bus> bus_;
dbus::ObjectProxy* object_proxy_;
scoped_ptr<dbus::TestService> test_service_;
scoped_ptr<dbus::TestService> test_service2_;
// Text message from "Test" signal.
std::string test_signal_string_;
};
TEST_F(SignalSenderVerificationTest, TestSignalAccepted) {
const char kMessage[] = "hello, world";
// Send the test signal from the exported object.
test_service_->SendTestSignal(kMessage);
// Receive the signal with the object proxy. The signal is handled in
// SignalSenderVerificationTest::OnTestSignal() in the main thread.
WaitForTestSignal();
ASSERT_EQ(kMessage, test_signal_string_);
}
TEST_F(SignalSenderVerificationTest, TestSignalRejected) {
// To make sure the histogram instance is created.
UMA_HISTOGRAM_COUNTS("DBus.RejectedSignalCount", 0);
base::Histogram* reject_signal_histogram =
base::StatisticsRecorder::FindHistogram("DBus.RejectedSignalCount");
scoped_ptr<base::HistogramSamples> samples1(
reject_signal_histogram->SnapshotSamples());
const char kNewMessage[] = "hello, new world";
test_service2_->SendTestSignal(kNewMessage);
// This test tests that our callback is NOT called by the ObjectProxy.
// Sleep to have message delivered to the client via the D-Bus service.
base::PlatformThread::Sleep(TestTimeouts::action_timeout());
scoped_ptr<base::HistogramSamples> samples2(
reject_signal_histogram->SnapshotSamples());
ASSERT_EQ("", test_signal_string_);
EXPECT_EQ(samples1->TotalCount() + 1, samples2->TotalCount());
}
TEST_F(SignalSenderVerificationTest, TestOwnerChanged) {
const char kMessage[] = "hello, world";
// Send the test signal from the exported object.
test_service_->SendTestSignal(kMessage);
// Receive the signal with the object proxy. The signal is handled in
// SignalSenderVerificationTest::OnTestSignal() in the main thread.
WaitForTestSignal();
ASSERT_EQ(kMessage, test_signal_string_);
// Release and aquire the name ownership.
test_service_->ShutdownAndBlock();
test_service2_->RequestOwnership();
// Now the second service owns the name.
const char kNewMessage[] = "hello, new world";
test_service2_->SendTestSignal(kNewMessage);
WaitForTestSignal();
ASSERT_EQ(kNewMessage, test_signal_string_);
}
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